User Defined Variables within SOLVE Application

[CR Haeger]

Hi Michael,

I've been looking at this as well. Im no expert, just learning from scratch.

It seems that although you can save an equation as a Home User Variable, say using F_P1:=fv=pv*(1+rate)^periods, you will have issues:
- You get a syntax error after you store the equation - even though it shows up in User Var properly
- If you try to assign it to a Solver APP with say Solve.E1:=F_P1 you will see 0 in E1: of the Solver App. Looks like its evaluating the variables ahead of time
- You get a syntax error if you try to type the equation (fv=pv*(1+rate)^periods) directly into Solver APP

So, I have tended to use CAS mode and saved equations in CAS variables:
- F_P1:=fv=pv*(1+rate)^periods // stores in Vars>CAS>All
- Solve.E1:=F_P1 // stores F_P1 contents into Solver APP E1:
- In Solve APP, will ask you to create new user vars fv, pv, rate, periods. say yes.
- Solver APP now works. Note - you can add multiple/simultaneous equations.
- You may want to delete the new User Variables just created after leaving Solve APP.

Best,
Carl